<head>
    <script src="../../../../resources/js-test-pre.js"></script>
    <script src="resources/location-tests-functions.js"></script>
</head>

<script>

self.jsTestIsAsync = true;

description("Test the Location object's ancestorOrigins property.")

shouldBeType("window.location.ancestorOrigins", "DOMStringList");
shouldBe("window.location.ancestorOrigins.length", "0");
shouldBeTrue("window.location.ancestorOrigins === window.location.ancestorOrigins");

var subframeOrigins;

window.onmessage = function(event)
{
    subframeOrigins = event.data;

    shouldBe("subframeOrigins.length", "1");
    shouldBe("subframeOrigins[0]", "'file://'");

    finishJSTest();
}

</script>
<iframe srcdoc="
  <script>
    var origins = [];
    for (var i = 0; i < location.ancestorOrigins.length; ++i) {
        origins.push(location.ancestorOrigins.item(i));
    }
    top.postMessage(origins, '*')
  </script>
"></iframe>
<script src="../../../../resources/js-test-post.js"></script>